MEK000030LA - Engine Coolant Temperature Sensor

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Engine coolant temperature sensor for the engine management system on the 1.8L K Series 4-cylinder petrol engine. The sensor is a thermistor that threads into the coolant circuit a nd reports coolant temperature to the engine control unit, which uses the signal to set cold-start enrichment, warm-up fuelling, ignition timing and cooling fan operation. A sensor that has drifted or gone open-circuit typically shows up as hard cold starting, poor fuel economy, a cooling fan that runs constantly or not at all, and a stored temperature-circuit fault code. Show more